K 10
svn:author
V 3
kib
K 8
svn:date
V 27
2019-07-23T16:11:38.645139Z
K 7
svn:log
V 250
Update refcount(9).

Describe missed functions.
Give some hint about refcount_release(9) memory ordering guarantees.

Reviewed by:	markj
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D21020

END